In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
HID: hyperv: validate initial device info bounds<\/p>\n
The Hyper-V synthetic HID host supplies SYNTH_HID_INITIAL_DEVICE_INFO
\nmessages that contain a HID descriptor followed by the report descriptor
\nbytes. mousevsc_on_receive_device_info() trusts bLength and
\nwDescriptorLength without checking that the received packet contains both
\nbyte ranges.<\/p>\n
A malformed host or backend message can therefore make the guest read
\npast the received VMBus packet while copying the report descriptor. Pass
\nthe received initial-device-info size into the parser and reject
\ndescriptor lengths that exceed the packet.<\/p>\n
Impact: A malicious Hyper-V host or backend can crash a guest by sending
\na short initial device-info message with an oversized HID report
\ndescriptor length.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
HID: hyperv: validate initial device info bounds<\/p>\n
The Hyper-V synthetic HID host supplies SYNTH_HID_INITIAL_DEVICE_INFO
\nmessages th<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17269","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}